No abstract

Aims: To determine cephalometric standards for Iraqi adults using Holdaway soft tissue analysis. Materials and Methods: The sample comprised 60 individual (31 males and 29 females), aged 18-23 years. Ten linear and tow angular parameters were measured on lateral cephalometric radiographs, using the definitions provided by Holdaway. For each variable mean and SD were calculated, in addition independent samples t-test was performed to detect sexual dimorphism. Results: Some differences were determined when the measurement obtained for Iraqi sample were compared to Holdaway norms. Iraqi adults showed a more obtuse H angle, less nose prominence, more upper lip strain, more skeletal convexity, and greater soft tissue chin thickness. In addition, a comparison between males and females revealed a significant sexual dimorphism for upper lip sulcus depth, upper lip thickness, basic upper lip thickness, and soft tissue chin thickness. Conclusions: soft tissue cephalometric norms are specific for each ethnic group. The normative data for Iraqi population should be used as a guide for diagnosis and planning of orthodontic treatment.

Aims: The purpose of this study was to determine the curve of Spee in class I and class II division 1 malocclusion groups to investigate whether there is a relationship between the depth of Curve of Spee with arch circumference and other variables (overjet and overbite) between two classes of occlusion. Materials and Methods: 60 dental casts of untreated adolescents, 30 girls and 30 boys aged 12-15 years, were obtained from secondary schools at Mosul City. The sample included 2 groups; the class I occlusion group and class II 1 malocclusion group, each group comprised from 30 subjects (15 boys and 15 girls). The depth of curve of Spee and arch circumference were measured on mandibular dental casts. Overjet and overbite were assessed with a vernia. Description of the variables within each class and comparison of the variable between two classes were assessed by student t-test. In addition, a correlation coefficients between the depth of curve of Spee and other variables were calculated. Results: the results showed that there were no significant differences between genders within the groups for all variables. However, these variables showed sexual differences between two groups. Statistically significant correlation was also found between the depth of Spee and overbite, overjet and arch circumferences in both groups.

Aims:To determine cephalometric standards for Iraqi adults using Holdaway soft tissue analysis. Materials and Methods: The sample comprised 60 individual (31 males and 29 females), aged 18-23 years. Ten linear and tow angular parameters were measured on lateral cephalometric radiographs, using the definitions provided by Holdaway. For each variable mean and SD were calculated, in addition independent samples t-test was performed to detect sexual dimorphism. Results: Some differences were determined when the measurement obtained for Iraqi sample were compared to Holdaway norms. Iraqi adults showed a more obtuse H angle, less nose prominence, more upper lip strain, more skeletal convexity, and greater soft tissue chin thickness. In addition, a comparison between males and females revealed a significant sexual dimorphism for upper lip sulcus depth, upper lip thickness, basic upper lip thickness, and soft tissue chin thickness. Conclusions: soft tissue cephalometric norms are specific for each ethnic group. The normative data for Iraqi population should be used as a guide for diagnosis and planning of orthodontic treatment.

Aims: To investigate for any difference in facial height measurements between Iraqi Arabs and Kurds adolescents. Materials and Methods: lateral cephalometric radiographs Of 42Arabic adolescents in Mosul city and 43 Kurdish adolescents in Arbil city were assessed for anterior and posterior facial height measurements. Results: No significant difference was found in facial height measurements between Arabic males and females. In Kurds, males showed significantly higher facial measurements than females. Kurdish adolescents had significantly greater facial height measurements than Arabic counterparts. Conclusions: Our results revealed that there is an overall difference in the facial height measurements between Arabic and Kurdish Iraqi adolescents.